flush_table.test

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

# TODO: Only run this if we have privilege to do flush table

#
# Test of flush table
#

--disable_warnings
drop table if exists t1,t2;
--enable_warnings
create table t1 (a int not null auto_increment primary key);
insert into t1 values(0);
lock table t1 read;
flush table t1;
check table t1;
drop table t1;

#
# In the following test FLUSH TABLES produces a deadlock
# (hang forever) if the fix for BUG #3565 is missing.
# And it shows that handler tables are re-opened after flush (BUG #4286).
#
create table t1(table_id char(20) primary key);
create table t2(table_id char(20) primary key);
insert into t1 values ('test.t1');
insert into t1 values ('');
insert into t2 values ('test.t2');
insert into t2 values ('');
handler t1 open as a1;
handler t1 open as a2;
handler t2 open;
handler a1 read first limit 9;
handler a2 read first limit 9;
handler t2 read first limit 9;
flush tables;
handler a1 read first limit 9;
handler a2 read first limit 9;
handler t2 read first limit 9;
#
--error 1066
handler t1 open as a1;
--error 1066
handler t1 open as a2;
--error 1066
handler t2 open;
handler a1 read first limit 9;
handler a2 read first limit 9;
handler t2 read first limit 9;
flush table t1;
handler a1 read first limit 9;
handler a2 read first limit 9;
handler t2 read first limit 9;
flush table t2;
handler t2 close;
drop table t1;
drop table t2;

#
# The fix for BUG #4286 cannot restore the position after a flush.
#
create table t1(table_id char(20) primary key);
insert into t1 values ('Record-01');
insert into t1 values ('Record-02');
insert into t1 values ('Record-03');
insert into t1 values ('Record-04');
insert into t1 values ('Record-05');
handler t1 open;
handler t1 read first limit 1;
handler t1 read next limit 1;
handler t1 read next limit 1;
flush table t1;
handler t1 read next limit 1;
handler t1 read next limit 1;
handler t1 close;
drop table t1;

#
# Bug #11934 Two sequential FLUSH TABLES WITH READ LOCK hangs client
#
FLUSH TABLES WITH READ LOCK ;
FLUSH TABLES WITH READ LOCK ;
UNLOCK TABLES;

# End of 4.1 tests